NABOS II - Water Quality and Physical Oceanography Data from the Eastern Eurasian and Makarov Basins, and Northern Laptev and East Siberian Seas in 2013 - 2015

Our 2015 Arctic research cruise aboard the RV "Akademik Tryoshnikov" was the tenth expedition under the aegis of NABOS (the Nansen and Amundsen Basins Observational System) conducted by the International Arctic Research Center (IARC) at the University of Alaska Fairbanks (UAF) and the Applied Physics Laboratory (APL) of the University of Washington (UW), in partnership with the Arctic and Antarctic Research Institute (AARI, St. Petersburg, Russia) and Alfred Wegener Institute (AWI, Bremerhaven, Germany). The main goal of this NABOS project is to provide a quantitative assessment of circulation and water-mass transformation along the principal pathways transporting water from the Nordic Seas to the Arctic Basin. Specific features of the 2015 NABOS cruise, in addition to our "standard" cruise program, were our extensive mooring program and the eastward extension of our traditional area from the eastern Eurasian Basin to the northern East Siberian Sea. New, unique scientific data collected along the Eurasian and Makarov basin continental margin under extreme climatological conditions will be vital for understanding Arctic climate change. Eight moorings were recovered, and thirteen were deployed. Unfortunately we could not locate one of our moorings (M5), off Severnaya Zemlya; there is, however, a chance that a more extensive search on a future cruise will help recover this mooring. Due to a lack of ship time, we also did not have a chance to approach mooring M9, which has been deployed in the northern East Siberian Sea during the summer of 2008. We maintain hopes for the recovery of this mooring as well.

2015年，我们搭乘RV"Akademik Tryoshnikov"号极地科考船执行的北极考察航次，是由阿拉斯加大学费尔班克斯分校（UAF，University of Alaska Fairbanks）的国际北极研究中心（IARC，International Arctic Research Center），以及华盛顿大学（UW，University of Washington）应用物理实验室（APL，Applied Physics Laboratory）牵头，联合俄罗斯圣彼得堡北极与南极研究所（AARI，Arctic and Antarctic Research Institute）、德国不来梅哈芬阿尔弗雷德·魏格纳研究所（AWI，Alfred Wegener Institute），在NABOS（南森与阿蒙森海盆观测系统，Nansen and Amundsen Basins Observational System）框架下开展的第十次考察活动。本NABOS项目的核心目标是，对北欧海域向北极海盆输水的主要通道上的环流与水团变性开展定量评估。2015年NABOS航次除执行标准科考计划外，还增设了大规模锚定潜标部署作业，并将传统作业区域从欧亚海盆东侧向东延伸至东西伯利亚海北部海域。在极端气候条件下沿欧亚海盆与马卡罗夫海盆大陆边缘采集的全新独特科学数据，对解析北极气候变化具有至关重要的科学价值。本次航次共回收8套锚定潜标，新部署13套。遗憾的是，位于北地群岛附近的锚定潜标M5未能找回；不过未来航次开展更全面的搜寻仍有找回该潜标的可能。受船舶作业时长限制，我们也未能靠近2008年夏季部署于东西伯利亚海北部的锚定潜标M9，我们同样期待未来能够回收该套潜标。